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研究结果表明，以Ｈｅｖｅａｎｉｔｉｄａ．Ｍａｒｔ．ｖａｒ．ｔｏｘｉｃｏｄｅｎｄｒｏｉｄｅｓ为树冠，用巴西橡胶优良无性系ＲＲＩＭ６００、ＰＲＩ０７和ＧＴ１作树干的矮型橡胶三合树，具有茎干粗壮、树冠低矮、枝条柔软、四季常青等特殊性状。三合树的树围生长与对照相当，但树高仅为对照巴西橡胶树的６５％。３年试割和正式开割３个月的产胶情况表明，三合树株产低于对照，但有相当的产胶能力。这种三合树是迄今所获得的具有良好抗风性状并可能具有生产价值的矮型橡胶树。
The findings show that Heveanitida. Mart. var. The toxicodendroides is a canopy with short rubber trunks truncated with the excellent clones RRIM600, PRI07 and GT1 of Brazil, with stems of stout, low crown, soft branches and evergreen. The tree trunk growth of the triptych tree was comparable to that of the control, but the tree height was only 65% of that of the control. 3 years trial cut and the official open cut 3 months of plastic case shows that the production of Sanye tree lower than the control, but a considerable capacity of the production of plastic. This triptych tree is a low-density rubber tree hitherto obtained with good wind-resistant properties and possibly with production value.